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Pesquisa Operacional

versão impressa ISSN 0101-7438versão On-line ISSN 1678-5142

Resumo

OLIVEIRA, Washington Alves de; SALLES NETO, Luiz Leduino de; MORETTI, Antonio Carlos  e  REIS, Ednei Felix. PACKING CIRCLES WITHIN CIRCULAR CONTAINERS: A NEW HEURISTIC ALGORITHM FOR THE BALANCE CONSTRAINTS CASE. Pesqui. Oper. [online]. 2016, vol.36, n.2, pp.279-300. ISSN 0101-7438.  https://doi.org/10.1590/0101-7438.2016.036.02.0279.

In this work we propose a heuristic algorithm for the layout optimization for disks installed in a rotating circular container. This is a unequal circle packing problem with additional balance constraints. It proved to be an NP-hard problem, which justifies heuristics methods for its resolution in larger instances. The main feature of our heuristic is based on the selection of the next circle to be placed inside the container according to the position of the system's center of mass. Our approach has been tested on a series of instances up to 55 circles and compared with the literature. Computational results show good performance in terms of solution quality and computational time for the proposed algorithm.

Palavras-chave : packing problem; layout optimization problem; nonidentical circles; heuristic algorithm.

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